It's a song about how immigrants are normal people with thoughts and feelings, our friends and family and so on, released when an anti-immigration sentiment was completely mainstream, but also just as Corbyn was becoming popular, and the singer's belting it out despite being knackered, and the crowd's belting it back, until he falls down crying because everyone's onside with his song he'd written about friendship and love, and the guitarist takes over without a second thought, and his wife comes out with their baby in a papoose to kiss him... I'm getting a lump in my throat just describing it.